.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 20px;
}

#gameCanvas {
    border: 2px solid #333;
    background-color: #f0f0f0;
}

.controls {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.speed-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

#startBtn {
    padding: 8px 16px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

#startBtn:hover {
    background-color: #45a049;
}

.score {
    font-size: 18px;
    font-weight: bold;
}